Full Exhaust, Norton/Ninja400R Velocity Stacks and ECU Flash Package Deal – Kawasaki Ninja 400 / Z400

From: $1,394.94

DO NOT SHIP until we have emailed you with shipping instructions AFTER you have placed your order, and it has been confirmed!



FREE US SHIPPING on this item!

We DO NOT sell OEM ECU’s or do ECU cores, you MUST send in an ECU for us to flash.

Our flash does NOT affect CELs (Check Engine Lights), if you have a check engine light from removing the PAIR or any EPA systems, and wish to cancel them, you will need to research the resistors needed for install to cancel them. CELs from blocking off the PAIR or removing the EVAP canister do not affect how the bike runs, if you are bothered by the CEL there are extensive articles on that explain what resistors are needed to cancel these CELs. However, most racers are not bothered by these, and run with them regardless.

*You must send in your OEM ECU to be flashed.  The price includes FREE return shipping to you in the US.

Current turnaround time to send in your ECU to be flashed is typically only 1-3 business days.

Once you place your order, we’ll contact you with shipping information to send in your ECU.

If you have already purchased an FTECU kit and have a license for your ECU, please email us at for a discounted price to use your license.

For more information on ECU flashing, read our article here:  Power Commander vs. Bazzaz Z-Fi vs. ECU Flash vs. aRacer Race ECU

By far the best power and performance bang-for-the-buck upgrade for your Ninja 4oo is to install one of these top performing exhausts with our Ninja400R Superbike Velocity Stacks and our Race Spec ECU Flash.  Add 7+ horsepower and 2.5 ft*lbs of torque to your Ninja 400!

*We recommend installing a block off plate at the same time as flashing the ECU or you will get some backfiring from the exhaust.

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This dyno chart shows the dramatic improvement gained on the same bike with the same exhaust just by adding our Ninja400R Superbike Velocity Stacks!  Look at that top end power!!!
Norton Flash Ninja400R Velocity Stacks Spark Exhaust Dyno Chart Norton Motorsports

This dyno chart shows the performance of the top 3 exhausts combined with our Ninja400R Velocity Stacks and our Norton Race Spec ECU flash that is optimized for this setup:

Ninja400R Velocity Stacks Spark Graves Akrapovic exhaust Norton Race Spec ECU Flash

Additional information

Weight 14 lbs
Dimensions 28 × 14 × 12 in

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